Week05 01 Clipper and Clamper
Week05 01 Clipper and Clamper
Week05 01 Clipper and Clamper
CTM
Clippers
• Rectifier diodes are optimized for use at low frequency
power supply (50-60Hz) and power rating greater than
0,5W.
• Except for DC power supplies, diodes have less usefull
because most of electronics devices use higher
frequency.
• The use of these diode can be optimized for high
frequencies and less than 0,5 power rating, by using
small-signal diode (SSD).
• SSD have smaller junction area than rectifier diodes
and it optimized to work at higher frequencies.
• A circuit that removes either positive or
negative parts of a waveform. Useful for signal
shaping, circuit protection and
communication.
• 2 kind of Clipper :
– Positive : remove all the positive part of input
signal, so the output has only negative half cycles
– Negative : viceversa
(a) Positive Clipper Circuit (b) Output Waveform
Input signal